Vertical-shaft floating pump



Apu A. HOLLANDER VERTICAL SHAFT FLOAITING PUMP Filed May 17. 192

gwvmtoc Cltkouwg Poetica Apr. 2a 1927.

Irrnn NT l 0 PUMP MFG. C0., F BERKELEY, CALIFORNIA, .A CORPMTION @ECALURNEA.

WRTlEAL-SHAFT FLQATING EUR.

Application :tiled May 1T, i926. Serial No. 15.09A@a a. delivery columnfrom the pump and an air valve movable in one direction to admit air tothe pump column, when the pump is not operetin A further oblect is 'edevice of the char- I acter described, constructed and adapted tointroduce an air charge from time to time with the pumped Water.

Another object is a pum for automatically retaining a compresse air bodyin a Water service tank. Other objects will appear from the draw in sand specifications which follow:

hese objects I attain ln providing a tloat preferably of cylindrical orml'ieving a centrai hollow tube through which an operating shaftcommunicates @from e motor mounted on the upper part of the Hoet todrive the centrifugal pump which is positioned under and suspended fromthe seid doet.

' From the pump e suitable delivery pipe or pipes extends substantially`arallelvvith the said axial tube and above t e motor and throughconventional flexible connections communicates with a suitable storageserv ice tank. ln the delivery column l mount one wey foot valve so asto hold water sbove the toot velve when the pump is not opervting and toprevent the return of presser' or Water irom the service tank throughthe pump discharge column.

@n the discharge column and between the :foot valve end the pumpand'above titl fili

. .l `oat I mount an eir inlet valve hemp; o

sprin actuetingy closure edapted to admit enr 'W en the pressure in thepump commi;

is below atmospheric pressure but to close wheneverthe pressure in thepump column exceeds the atmospheric pressure.

By referring to the accompanying drawing my invention will be madeclear.

ln the drawing:

Fig. 1 is a vertical section through a conu ventional Well showing theapparatus ot my invention in position therein with s Hoet and iootvalveshown partlyv insect-ion end with a service trink and a ilexiblesection.of the delivery column, on a reduced-scale.

Fig. 2 is an enlarged cross section through the sir inlet valve of Fig.l..

Figi. 3 is a cross section of lig. line lll-dll.

i on the Fig. i is a diagrammatic showing ot my apparatus with a Hoet otreduced size and with the apparatus lsuspended Jiroin a lpulley endprovided with e counter-balancing weicht thereebove.

'llie Wei ht in this case partially counterbalanc-es tlie apparatussuspended in the Well, the remainder of the counter-balenen ing beingedected by thedisplacement ci the reduced sized float.

'lhrou hout the heures similar numerals sure in the service tank at elltimes, and

Water service connections are shown at l to the house 3.

The inlet connection to the tonk i is shown at 8 and any conventionoldexible connection is shown et 9 which is connected "with a pumpdelivery column L), and with the tank through the pipe 8.

At 11 is a foot valve allowing Water to rise through the column l0 butclosing upon its sost es shown in Fig. i when the ump stops end' ittherefore holds the iui and the pressure in the column l0., pipes 9, 8and tank t.

it L2 is e doet on which is ned the m0 Cil 'understood that these are tobe supplied lll ith

with a suitable source of energy, well known but not shown. throughautomatic or hand operated switches to energize the motor 13 as may berequired.

Referring particularly to Fig. 4, where a dont of smaller dimensions isemployed, the apparatus is partially counter-balanced by the weight 22 oeratlng over the. ulley 23 throu h the cab e 24, which partiallycounter-b ances the suspended weight of the apparatus in the wel In Fig.2, showing the detailed structure of one form of air valve 18, the valvemember 25 normally seats upon the valve seat 26 'whemwater is beingpumped and falls te the dotted position 27A when the pump is stopped.

. rlihe foot valve 11 is hinged in the body 30 at 31, and when the pumpis o erating, the valve 11 pivots at 31 rising o of its seat 32 whereaswhen the pump stops the valve 11 closes on the seat 32. y

I prefer to arrange the column members l5, 1G synunetrically about thecentral shaft 119 and therefore prefer to use two such members. In thiswa the center of gravity of the entire suspen ed structure is always rentained in the axial line of theshaft 19 and titl central in the well.

The fioat12 is shown of hollow cylindrical form preferably of sheetsteel with `welded or riveted seams and is of such dimansions as willadequately support the entire suspended weight, without sinking bef lowthe water surface 2.

This float may beV made of reduced dimensions and its deficiency insustaining power,

- may be compensated for by the weight 22 till are

age tank 4.

shown in Fig. 4, if desired.

The operation is as follows:

'The motor 13 is energized through the connections 20, 21 rotating theshaft 19 and actuating the pump 14 whereby water is forced from thewalll, through the members 15, 16, branch pipe 17 raising the lvalveV11. and forcing the water u through the column 10, pipes 9 and 8 aninto the stor- When the pump first starts to operate, a

' body of air 1s forced up above the water Surfaces in the members 15,16 and will v now be compressed in the tank 4 establishing an elasticfluid pressure above the water surface 5. l

When the pressure gauge indicates the desired pressure having beenattained, the house 3 mav be served as required by water being withdrawnthrough the pipe 7. This will eiect a reduction in pressure in the tank4 and when this has'reduced to a sufficient degree, the motor willaffain be energized and the pump operated to deliver more water into thetank 4.

Under the increased pressure in the tank 4, the water body thereincontained will gradually absorb the compressed air or the compressed airmay leak or be otherwise lost from the tank 4 and its replenishment fromtime to time is essential to retain a proper elastic pressure to forcewater through the connection 7 as demanded. Y

By my apparatus this compressed air pody is automatically replenished asfolows:

Whenever the pump is stopped the foot valve 11 closes under the ressurein pipe 10 and the body of water elow the valve 11 falls substantiallyto the level 2.

This is made possible by the external -air pressure acting upon thevalve 25, forcing it from its seat, thus allowin the water to fall tothelevel 2 in the mem rs 15 and 16 and thus filling the s ace above thewater levels in the said mem ers 15, 16 and branch '17 and up to thefoot valve 11 with air.

When the pump is again started this air inthe members 15, 16 `and branch17 is forced up with the water now being forced f from the pump 14andAis passed into the storage tank 4. The tank will therefore berecharged with compressed air.

This increment of recharging of compressed air will occur every time thepump is started and stopped. v claim:

1. In combindtion with a vertical shaft centrifugalpump, a float belowwhich said pump is suspended said oat having a tubuar openintherethrough, a motor fixed on top of sai float, a driving shaftconnecting said motor and said pump in operative relation and passingthrough said opening.

2. In combination with a vertical shaft centrifugal pump, a float belowrwhich said pump is suspended said Boat having a tubular openingtherethrough, aA motor lixed on centrifugal pumpa oat below which saidpump is suspend said float having a tubuios A lar openirw therethrough,a motor fixed on the assembled fioat, motor and pump to to` ofsaidbfioat, a driving shaft connecting rise and fall with the water ina. Well, said sald motor and said pum in operative reladischar e columncomprising a plurality 10 tion and passing throug said opening, a ofdeliver pipes symmetrically spaced tank, a discharge column from saidpump around sai float and merging into u single and connecting said pumpwith said tank, discharge pipe above the motor.

a exibie portlon in said coiumn permitting ALADAR HOLLANDER.

